The error is not fixed. In both Python 2.17.17 and 3.12.3 I am getting the out of index error. Python 3 takes much longer to get it. My spoof program sended like 90 packets in total and the program crashes with the exact same error as the original poster. Spoof program is working great except of the sudden crash of Scapy.

I am programming under Ubuntu 24.04 and 18.04.